Lucius Junius Moderatus Columella (/ˌkɒljəˈmɛlə/; Arabic: Yunius,[1] 4 – c. 70 AD) was a prominent writer on agriculture in the Roman empire.[2]

Lucius Junius Moderatus Columella
Portrait of Lucius Junius Moderatus Columella from Jean de Tournes, Insignium aliquot virorum icones, Lyon, 1559
Born4 AD
Gades, Hispania Baetica
Diedc. 70 AD
Notable worksDe Re Rustica
Statue of Columella, holding a sickle and an ox-yoke, in the Plaza de las Flores, Cádiz

His De re rustica in twelve volumes has been completely preserved and forms an important source on Roman agriculture, together with the works of Cato the Elder and Varro, both of which he occasionally cites. A smaller book on trees, De arboribus, is usually attributed to him.

In 1794 the Spanish botanists Jose Antonio Pavón y Jimenez and Hipólito Ruiz López named a genus of Peruvian asterid Columellia in his honour.[3]